Ever feel like a friend is taking advantage of your good intentions? The truth is, they might be using you to get something that they want.People who use other people might present themselves as friends, but in reality, that's only a disguise for their manipulative tactics. This is tricky to catch, especially if you're naturally empathetic and helpful, but Pye and Dr. Glen have 5 signs that if you notice these in your relationships, it might be time to start setting boundaries.